To reverse the blame and put it on the person who blamed you.
Person 1: ur mom gay
Person 2:no u
the single greatest comeback to ever be uttered by any human being that exists,has existed, ever will exist, and ever could exist in alternate timelines
"you're an idiot". "no u"
the greatest comeback of the entire century
Mike: "your mom sucks dude"
Jack: "no u"
The cringiest comeback but it actually works soooooo yeah
Person:ur Mum gei
You: No U
Person: Cringes to death
A horrible way of taking insults. It was used mainly when insulted, you'd just reverse it back to them.
This is a term only used by pilgrims, honestly annoying when told. No effort, no spice, no anything. Boring and most importantly, no one cares.
"Oi, Gerald you look like an oompa loompa."
"No u"
"...."
The ultimate comeback line. Say this one and you will win any argument.
Unless they reply with no u.